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March, 03/05/2015
Events and times subject to change

March 5, 2015 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)

Today's colloquium has been canceled due to the weather.



March 6, 2015 Friday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Nanda Rea
University of Amsterdam/CSIC-IEEC

Magnetars life cycle: birth, evolution and death

Magnetars are the strongest magnets we know of, and show themselves via powerful X/gamma-ray steady and flaring emission. The energetics of such flares in our Galaxy second only the supernova explosions. In this talk I will first review the observational characteristics of these highly magnetic pulsars, and some recent discoveries in the field. Subsequently, I will present what we currently know about their life-cycle, through detailed simulations of neutron star magneto-thermal evolution and pulsar population synthesis. I will then finish with some considerations on how the study of the Galactic population of magnetars might constrain their possible connection with Gamma Ray Bursts.


March 6, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Matthew Turk
NCSA

Astrophysical Inquiry: A Disrupted Market

The availability of low-cost hardware, high-functionality software, and the plethora of methods for acquiring, inspecting, analyzing and sharing data has changed the way individual researchers as well as entire communities -- such as astronomy and astrophysics -- understand and interact with their data. Processes that used to be hard are now trivial; processes that used to be impossible are now necessary. Drawing on examples from computational astrophysics and cosmology, I will describe how the commodity market for data-related services has changed the needs of the scientific community, and how this can be leveraged in the future to develop advanced, useful, and forward-thinking technologies to transform the way researchers interact with data.


March 9, 2015 Monday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Experimental Particle Physics Seminars (hep-ex)


Daniel Whiteson
UC Irvine

Observing Ultra-High Energy Cosmic Rays with Smartphones

We propose a novel approach for observing cosmic rays at ultra-high energy ($>10^{18}$~eV) by repurposing the existing network of smartphones as a ground detector array. Extensive air showers generated by cosmic rays produce muons and high-energy photons, which can be detected by the CMOS sensors of smartphone cameras. The small size and low efficiency of each sensor is compensated by the large number of active phones. We show that if user adoption targets are met, such a network will have significant observing power at the highest energies.


March 9, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag
Rampei Kimura
NYU

Spherically symmetric solutions in Quasidilaton massive gravity

I will describe a quasidilaton theory, which is an extension of massive gravity. Then I will discuss the spherically symmetric solutions and their stabilities for all propagating modes in the decoupling limit.


March 10, 2015 Tuesday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Susan Kassin
Space Telescope Science Insistute

TBA



March 11, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Adam Martin
Notre Dame

TBA



March 11, 2015 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


George Shubeita
University of Texas, Austin

Molecular Motors: from Mechanics to Disease

Much like a city, living cells are organized, and maintaining their organization is essential for their proper functioning. To position micrometer-sized vesicles and organelles inside the cell at the right place and in a timely fashion the cell shuttles these cargoes along a network of intracellular roads (microtubules and actin filaments) using a set of molecular motor proteins (kinesin, dynein and myosin). These motor proteins use the energy released by ATP hydrolysis to generate the force they need to haul the cargoes; thus, measuring that force amounts to directly probing their function. Measuring the piconewoton forces that motors exert in their native cellular environment enabled us to count the number of motors hauling individual cargoes, and to test physical models of intracellular transport. Given the ubiquity of molecular motors, failure in regulating their function can result in disease. Neurodegenerative diseases such as Alzheimer’s, Huntington and Amyotrophic Lateral Sclerosis, for example, have been linked to motor malfunction. Using a combination of genetic, biochemical and biophysical tools in a fruit fly model of Alzheimer’s disease, we established the mechanism by which the motor regulator GSK-3 alters transport when present in the elevated levels found in Alzheimer’s patients. Our findings have implications on the development Alzheimer’s drugs targeting GSK-3.


March 12, 2015 Thursday 2:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Keivan Stassun
Vanderbilt University



March 12, 2015 Thursday 4:00 PM  +
Meyer 433 and Meyer 425 A & B
Other Physics Department Events (other)

Pi Day and St. Patrick's Celebration

Light refreshments will be served.


March 13, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Tea Temim
University of Maryland College Park

Supernovae as Drivers of Dust Evolution in Galaxies

The understanding of interstellar dust is important in many areas of astrophysics, but its nature, origin, and evolution are still poorly understood. The presence of dust in galaxies has a profound effect on their spectral appearance and on the many processes that determine the physical, chemical, and thermal state of the interstellar medium (ISM). Dust is primarily formed in the ejecta of core collapse supernovae (SNe) and mass outflows of evolved stars, and then subsequently destroyed by SN shocks expanding into the surrounding ISM. I will present the recent progress on the study of SN-formed dust in supernova remnants (SNRs), including recent observations of Cas A, SN 1987A, and the Crab Nebula that revealed significant masses of cold dust, as well as new estimates of global dust destruction rates by SNRs in the Magellanic Clouds. I will discuss the balance between dust formation and destruction by SNe and its implications for dust evolution models and our understanding of the origin of interstellar dust in galaxies.


March 23, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



March 25, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Spencer Chang
University of Oregon

tba



March 26, 2015 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Jerome Bibette
EPSCI

TBA



March 27, 2015 Friday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Paul Duffell
UC Berkeley

Proto Planetary Disks

Recent simulations of protoplanetary disks.


March 27, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Neil Gehrels
Goddard Space Flight Center

Adventures in Time Domain Astronomy

The X-ray and gamma-ray sky is more dynamic than in other wavelength bands. Gamma-ray bursts, supernovae, and black hole accretors all are characterized by bursts and flares. We are in a rich period of time domain astronomy with Swift, and Fermi operating. The X-ray through high energy gamma-ray skies are being monitored on hourly to daily time scales at sensitivities more than an order of magnitude better than ever before. Highlights will be presented of the exciting and often surprising results about our highly variable universe.


March 30, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



April 1, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Kfir Blum
IAS

TBA



April 3, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Alan Calder
Stony Brook

Cosmic Candle Making with Thermonuclear Supernovae

Type Ia (thermonuclear) supernovae are bright stellar explosions distinguished by light curves that can be calibrated to allow for their use as "standard candles" for measuring cosmological distances. Contemporary research investigates how properties of the progenitor system that follow from properties of the host galaxy such as composition and age influence the brightness of an event. The goals are to better understand systematic effects and to assess the intrinsic scatter in the brightness, thereby reducing uncertainties in cosmological studies. We present the results from ensembles of simulations in the single-degenerate paradigm addressing the influence of age and metallicity on the brightness of an event and compare our results to observed variations of brightness that correlate with properties of the host galaxy.


April 6, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag
Alex Vikman
LMU

Imperfect Dark Matter



April 8, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Ami Katz
Boston University

TBA



April 9, 2015 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Mikhail Lukin
Harvard University

TBA



April 10, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Nikhil Padmanabhan
Yale University



April 13, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



April 15, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


James Stokes
UPenn

The curious case of large-N expansions on a (pseudo)sphere



April 15, 2015 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Edward Lyman
University of Delaware

TBA



April 16, 2015 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Gabriel Kotliar

TBA



April 17, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Phil Marshall
Stanford



April 20, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



April 22, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Tony Gherghetta
University of Minnesota

TBA



April 22, 2015 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Garegyn Papoian

TBA



April 24, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Daan Meerburg
CITA

Putting Inflation to the Test



April 27, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



April 28, 2015 Tuesday 2:00 PM  +
Meyer 611
Hard Condensed Matter Seminars (hcmp)


Efrat Shimshoni
Bar-Ilan University

TBA



April 29, 2015 Wednesday 10:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

PhD defense
Daniel Foreman-Mackey
NYU

Exoplanets TBA



April 29, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Sean Carroll
Caltech

tba



April 29, 2015 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Dennis Discher
University of Pennsylvania

How Long Is All The DNA in Your Body and How Do You Physically Protect It?



April 30, 2015 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Marc Kamionkowksi

TBA



May 1, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Sarbani Basu
Yale University

Journeying to the center of stars

Helioseismology, the seismic study of the Sun, has allowed us to probe the structure and dynamics of the solar interior with unprecedented accuracy. Helioseismic data have also allowed us to study properties of stellar matter. NASA's Kepler mission has allowed us to undertake seismic studies of other stars. While the field is not yet fully developed and we are still learning the best way to analyze the data, asteroseismic studies of stars has already produced exciting results. In this talk I shall review what asteroseismology is, how we interpret asteroseismic data, and then talk about some of the exciting results obtained with data from Kepler.


May 4, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



May 6, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Daniel Harlow
Princeton

TBA



May 7, 2015 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Ivan Schuller

TBA



May 8, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Erik Tollerud
Yale University

Local Dwarf Galaxies and Near-Field Cosmology in ΛCDM

Dwarf galaxies are a frontier for new discoveries in both galaxy formation and cosmology. I will discuss work centered around connecting LCDM and its predictions to observations of dwarf galaxies at three different scales of "dwarf". I will discuss the Milky Way and M31's satellites and both solutions and lingering troubles with their abundances and scalings. I will also describe efforts to use these scalings in conjunction with simulations to constrain if and how the satellite's baryons are strongly influenced by their hosts. Finally, I will describe searches for comparable satellites beyond the Local Group, and compare their abundances and properties to straightforward LCDM expectations.


May 11, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



May 13, 2015 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Kristan Jensen
Stony Brook

TBA



May 15, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Katherine Deck
Caltech

exoplanet dynamics TBD



May 18, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



May 22, 2015 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Lara Nava
Hebrew Univ.

GRBs and CRs



May 25, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



June 1, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



June 8, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



June 15, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



June 22, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



June 29, 2015 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag